add headerbars, improve dialogs and updater

po/files_to_translate

po/pamac.pot

resources/Makefile

resources/choose_dep_dialog.ui

resources/choose_ignorepkgs_dialog.ui

resources/choose_provider_dialog.ui

resources/history_dialog.ui

resources/manager_window.ui

resources/pamac.manager.gresource.xml

resources/pamac.transaction.gresource.xml

resources/preferences_dialog.ui

resources/progress_dialog.ui

resources/transaction_info_dialog.ui

resources/transaction_sum_dialog.ui

resources/updater_window.ui

src/Makefile

src/choose_dep_dialog.vala

src/choose_ignorepkgs_dialog.vala

src/choose_provider_dialog.vala

src/history_dialog.vala